I'd bet you could beat someone to death alot easier with a 30 round mag than a 15 round one Could probably choke a cow with a mag. If Chuck Norris threw a loaded 30 round mag at you out of a balloon at 30000 feet it might kill you... hmm, how else could you kill someone with a mag? (and yes I know the operative part is YOU, not the mag. Having some fun)
I bet a cow could choke on one without any help from me. I'll wait while she tries.